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العربيةtu.sa
Interpay

Flutter Developer

Location
Riyadh, Saudi Arabia
Workplace
On-site
Job type
Full-time
Experience
Mid-senior level

About Interpay

Interpay builds the retail payment software that banks and merchants across Saudi Arabia depend on: POS and SoftPOS acceptance, e-commerce gateways, payment switching and merchant services. Our products handle cardholder data under SAMA regulation and PCI security standards, and they run around the clock.


The role

As a Flutter Developer, you'll build and maintain Interpay's cross-platform mobile applications, including SoftPOS and merchant-facing payment products. Because these apps handle cardholder data, the role combines strong Flutter engineering with disciplined mobile security. You'll report to the Development Manager.


What you'll do

Application development

  • Feature delivery: design and implement new application modules in Flutter and Dart against product requirements
  • Architecture: build on a clean, layered BLoC architecture with strict separation between presentation, business logic and data
  • Reusable engineering: build shared components, packages and libraries used across Interpay's mobile products
  • UI: turn UI/UX designs into pixel-accurate, responsive and accessible interfaces across a wide range of Android and iOS devices
  • Native integration: write platform channels in Kotlin and Swift for NFC, secure hardware and device peripherals
  • Payment integration: integrate payment SDKs, PIN-entry components and card-reader interfaces, and consume Interpay's backend APIs
  • Quality and performance: write unit, widget and integration tests, and profile apps for speed, memory, battery and scale on low-end and high-end devices

Security and compliance

  • Store keys and credentials securely with Android Keystore and iOS Keychain
  • Implement certificate pinning, root and jailbreak detection, code obfuscation and anti-tampering
  • Work within PCI MPoC, SPoC and the PCI Secure Software Lifecycle, and support audits and certification
  • Meet OWASP MASVS expectations and fix findings from internal reviews, penetration tests and external assessors
  • Prepare apps for Google Play and App Store submission, including store policy, privacy and data-safety requirements

Engineering practice

  • Work closely with designers, product managers, QA, backend developers and the security team
  • Take part in architecture discussions, sprint ceremonies and peer code reviews
  • Maintain mobile CI/CD pipelines for build, test, signing and distribution
  • Monitor crash reporting, analytics and push notifications, and act on production issues quickly


What you'll bring

  • Bachelor's degree in Computer Science, Software Engineering, IT or a related field, or equivalent practical experience
  • 4+ years of professional mobile development, with production apps delivered
  • Hands-on BLoC experience is mandatory: you've designed and built Flutter apps on BLoC and understand its layering, event and state modelling, and testability
  • Strong Dart and Flutter, including asynchronous programming, dependency injection and state management
  • At least two Android and/or iOS apps built and shipped with Flutter, with one or more published on Google Play or the App Store
  • Platform channels and native Android (Kotlin) and iOS (Swift) code
  • REST APIs and third-party library and SDK integration
  • The full mobile lifecycle: automated testing, build automation, code signing and release management
  • SQL and NoSQL data stores
  • Git, with pull-request and code-review workflows
  • Mobile secure coding: secure storage, certificate pinning and obfuscation
  • Professional working proficiency in English
  • Willing and eligible to work on-site in Riyadh


Nice to have

  • Payments, fintech or banking experience, especially POS, SoftPOS or mobile acceptance products
  • NFC and EMV contactless card reading on Android
  • PCI MPoC, SPoC or PCI Secure SLC, or formal security certification of a mobile product
  • App-shielding or RASP tools, and mobile penetration test remediation
  • OWASP MASVS and the Mobile Application Security Testing Guide
  • Mobile CI/CD tools such as GitHub Actions, Azure DevOps, Codemagic or Bitrise
  • Firebase: Crashlytics, Cloud Messaging and Remote Config
  • Riverpod or Provider
  • Arabic


How we work

  • Engineering discipline: clean, tested, maintainable code and a high bar in code review
  • Security mindset: security is a design input from the start
  • Ownership: you see features from design to production and stand behind their quality
  • Collaboration: clear communication with technical and non-technical colleagues across countries and time zones
  • Adaptability: you work well in a fast-moving, regulated environment where priorities can shift


Where and when

Full-time, on-site at our Riyadh office. Occasional travel to customer or partner sites within the Kingdom may be required.


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